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20112212001020 = 2251005610600051
BaseRepresentation
bin1001001001010101111010…
…10000001000000011111100
32122012201010122010202222112
410210222331100020003330
510114004302233013040
6110435231142433152
74144026235213616
oct444527520100374
978181118122875
1020112212001020
1164545a5394267
122309a6b1327b8
13b2b75bb54889
144d7617123db6
1524d27126b365
hex124abd4080fc

20112212001020 has 12 divisors (see below), whose sum is σ = 42235645202184. Its totient is φ = 8044884800400.

The previous prime is 20112212000893. The next prime is 20112212001053. The reversal of 20112212001020 is 2010021221102.

It is a junction number, because it is equal to n+sod(n) for n = 20112212000986 and 20112212001004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502805300006 + ... + 502805300045.

It is an arithmetic number, because the mean of its divisors is an integer number (3519637100182).

Almost surely, 220112212001020 is an apocalyptic number.

20112212001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112212001020 is an abundant number, since it is smaller than the sum of its proper divisors (22123433201164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20112212001020 is a wasteful number, since it uses less digits than its factorization.

20112212001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005610600060 (or 1005610600058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112212001020 its reverse (2010021221102), we get a palindrome (22122233222122).

The spelling of 20112212001020 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, one thousand, twenty".

Divisors: 1 2 4 5 10 20 1005610600051 2011221200102 4022442400204 5028053000255 10056106000510 20112212001020